<template>
  <div class="lineContainer">
    <svg width="500" height="270">
      <g style="transform: translate(0, 10px)">
        <path :d="line" />
      </g>
    </svg>
  </div>
</template>

<script>
export default {
  name: 'd3line',
  data () {
    return {
      data: [99, 71, 78, 25, 36, 92],
      line: ''
    }
  },
  mounted () {
    this.calculatePath()
  },
  methods: {
    getScales () {
      const x = d3.scaleTime().range([0, 430])
      const y = d3.scaleLinear().range([210, 0])
      d3.axisLeft().scale(x)
      d3.axisBottom().scale(y)
      x.domain(d3.extent(this.data, (d, i) => i))
      y.domain([0, d3.max(this.data, (d) => d)])
      return { x, y }
    },
    calculatePath () {
      const scale = this.getScales()
      const path = d3
        .line()
        .x((d, i) => scale.x(i))
        .y((d) => scale.y(d))
      this.line = path(this.data)
    }
  }
}
</script>

<style lang="scss" scoped>
.lineContainer {
  position: relative;
  border: 2px #000 solid;
  background-color: #9dadc1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  svg {
    margin: 25px;
    path {
      fill: none;
      stroke: #76bf8a;
      stroke-width: 3px;
    }
  }
}
</style>
